Regardless of what form symptoms take (SKIN RASH, tingling around the MOUTH, DIARRHEA), a type I hypersensitivity reaction is a systemic response-it affects and involves the body as a whole.
How to Read Your Eyeglass Prescription. The first step to understanding your eyeglass prescription is knowing what OD and OS mean. They are abbreviations for oculus dexter and oculus sinister, which are Latin terms for right eye and left eye.
AMD is a loss of central vision that can occur in two forms: dry (atrophic) and wet (exudative). Most people with macular degeneration have the dry form, for which there is no known treatment. The less common wet form may respond to laser procedures and medication injections, if diagnosed and treated early.